Knee brace



FIG. 1 is a perspective view of an embodiment of a knee brace, showingour design;

FIG. 2 is a first side elevational view of the brace of FIG. 1;

FIG. 3 is an opposite side elevational view of the brace of FIG. 1;

FIG. 4 is a front elevational view of the brace of FIG. 1;

FIG. 5 is a rear elevational view of the brace of FIG. 1;

FIG. 6 is top plan view of the brace of FIG. 1; and,

FIG. 7 is bottom plan view of the brace of FIG. 1.

The broken lines illustrate environmental components of the knee bracewhich form no part of the claimed design.

The ornamental design for a knee brace, as shown and described.